<ion-header no-border>
  <ion-toolbar>
    <ion-title>Header</ion-title>
    <ion-buttons start>
      <button ion-button small (click)="close()">
        <span showWhen="ios">取消</span>
        <ion-icon name="close" showWhen="android,windows"></ion-icon>
      </button>
    </ion-buttons>
  </ion-toolbar>
</ion-header>
<ion-content>
	<button ion-button light (click)="imagePick()">选择图片</button>
</ion-content>